Temperature- and illumination-dependent recombination of the photoinduced charge carriers in organic–inorganic hybrid perovskite solar cells

IF 1.8 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

MRS Communications Pub Date : 2024-03-18 DOI:10.1557/s43579-024-00540-9

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Abstract

We present the analytic workflow to understand the temperature and illumination-intensity-dependent recombination of the photoinduced charge carriers in organic–inorganic hybrid perovskite solar cells based on methylammonium lead iodide (CH₃NH₃PbI₃) thin films. The temperature-dependent, open-circuit voltage analysis reveals that the recombination of photoinduced charge carriers predominantly occurs at our PEDOT:PSS/CH₃NH₃PbI₃ interface as well as in the depletion region. Taking into account the structural phase transition in CH₃NH₃PbI₃ films, as confirmed using temperature-dependent x-ray diffraction spectra and dielectric constant measurements, the illumination-dependent short-circuit current and open-circuit voltage analysis shows both bimolecular and trap-assisted recombination is dominant in our solution-processed perovskite solar cells.

Graphical abstract

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有机-无机混合型过氧化物太阳能电池中光诱导电荷载流子的重组与温度和光照有关

摘要我们介绍了分析工作流程，以了解基于碘化甲铵铅 (CH3NH3PbI3) 薄膜的有机-无机混合包光体太阳能电池中光诱导电荷载流子的重组随温度和光照强度变化的情况。与温度相关的开路电压分析表明，光诱导电荷载流子的重组主要发生在 PEDOT:PSS/CH3NH3PbI3 界面以及耗尽区。考虑到 CH3NH3PbI3 薄膜中的结构相变（温度依赖型 X 射线衍射光谱和介电常数测量结果均证实了这一点），随光照变化的短路电流和开路电压分析表明，双分子和陷阱辅助重组在我们的溶液加工过氧化物太阳能电池中占主导地位。图表摘要

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来源期刊

MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-

CiteScore

2.60

自引率

10.50%

发文量

166

审稿时长

>12 weeks

期刊介绍： MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.